@media screen and (max-width:750px) {
    .container {
        width: 750px;
    }
}
@media screen and (max-width:360px) {
    .container {
        width: 90%;
    }
    .show-nav ul {
        display: none;
    }
    .box-line {
        display: block !important;
    }
    .show-nav {
        width: 30px;
    }
}